FFMPEG CONCAT DIFFERENT FRAME RATES MP4

$ ffmpeg -f image2 -i image%d.jpg imagestovideo.mp4 $ ffmpeg -i video.flv image%d.jpg Convert Images into a Video $ ffmpeg -f concat -safe 0 -i mylist.txt -c copy output.mp4 Split a Video into Images Ss offset = frame number divided by FPS of video = the decimal (in milliseconds) ffmpeg needs i.e. $ ffmpeg -ss $1 -i $2 -qmin 1 -q:v 1 -qscale:v 2 -frames:v 1 -huffman optimal $3.jpg

Where vf is a custom bash script as follows: You can get the list of supported formats with:Ĭonvert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:įfmpeg -i input.wav -ac 1 -ab 64000 -ar 22050 output.mp3Ĭonvert any MP3 file to WAV 16khz mono 16bit:įfmpeg -i 111.mp3 -acodec pcm_s16le -ac 1 -ar 16000 out.wavĬonvert any MP3 file to WAV 20khz mono 16bit for ADDAC WAV Player:įfmpeg -i 111.mp3 -acodec pcm_s16le -ac 1 -ar 22050 out.wavįor i in *.mp3 do ffmpeg -i '$i' -acodec pcm_s16le -ac 1 -ar 22050 '$.mp3' doneĮxtract Single Image from a Video at Specified Frame Minimal example: transcode from MP3 to WMA: The 'cat' option does not work for codecs with timestamps (which AVC/h264 has).Ffmpeg -i filename -ab 320000 -ar 48000 output.mp3 Converting Audio into Different Formats / Sample Rates So the calls were for the concat protocol ffmpeg -i 'concat:clip1.ts|clip2.ts' -c copy out.m2tĪnd the concat demuxer: ffmpeg -hide_banner -y -f concat -safe 0 -i merge.txt -c copy out.mp4īelow the codec information of the two clips: ffmpeg -n -i 'clip1.mp4' -i 'clip2.mp4'įfmpeg version n4.2.2 Copyright (c) 2000-2019 the FFmpeg developersīuilt with gcc 9.3.0 (Arch Linux 9.3.0-1)Ĭonfiguration: -prefix=/usr -disable-debug -disable-static -disable-stripping -enable-fontconfig -enable-gmp -enable-gnutls -enable-gpl -enable-ladspa -enable-libaom -enable-libass -enable-libbluray -enable-libdav1d -enable-libdrm -enable-libfreetype -enable-libfribidi -enable-libgsm -enable-libiec61883 -enable-libjack -enable-libmfx -enable-libmodplug -enable-libmp3lame -enable-libopencore_amrnb -enable-libopencore_amrwb -enable-libopenjpeg -enable-libopus -enable-libpulse -enable-libsoxr -enable-libspeex -enable-libssh -enable-libtheora -enable-libv4l2 -enable-libvidstab -enable-libvorbis -enable-libvpx -enable-libwebp -enable-libx264 -enable-libx265 -enable-libxcb -enable-libxml2 -enable-libxvid -enable-nvdec -enable-nvenc -enable-omx -enable-shared -enable-version3 My goal was to copy the packages, not to remux them. Concat demux with AVC (MPEG-PS - High Profile) skips frames and mixes some frames from the second clip into the first.Concat protocol with AVC (MPEG-TS - High profile) pixelates about 5 frames during the transition.Both 'concat protocol' (for h264 TS files) and 'Concat demuxer' (for h264 PS files) produce artifacts that are unpleasant to watch:

FFMPEG CONCAT DIFFERENT FRAME RATES MP4

To concat two mp4 or ts files (I've both formats) ffmpeg offers someĬalls that I've tried.

Ffmpeg concat different frame rates